I had problems with it freezing up in the afternoon. Had to reboot it many times. One time it jumped from Top Fuel back to Funny car.
Worked pretty good most of the late session.
Have been logged in for 20 minutes this morning [Sat.] and have had to reboot once already. Looks like a long day ahead.
Note: It actually worked fine all day. Some freeze up's very late in the day.